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    • jpcarlson
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        October 29, 2012 at 3:39 am
        Post count: 218
        #5899

        Ok guys, what i have really been waiting for is for the collective knowledge to share more on their experience with footings on these high FOC arrows. Maybe I am missing some posts where this has been discussed in depth. I am just now realizing, after building arrows with 32%FOC, that even carbon shafting has its weekpoints. What have you all been doing to strengthen your arrows? How has it worked, anything you would change?

        I am trying to “serve” the shaft with nylon serving thread. I have tried to come down on the shaft 1.5″ so far which will reinforce the very tip of the shaft, down into the hidden insert area. I am going to epoxy coat this thread while the arrow is turning on a slow motor to get a uniform thickness while curing. Does anyone think 1.5″ is enough, or should I be coming down way further for strength? I know some have used aluminum shafting fitted/glued over the carbon. I guess like how the thread/epoxy looks and works like fishing rod. Any thoughts out there? please do share!

        Jans

      • OpenSky1
          October 29, 2012 at 3:09 pm
          Post count: 20
          #46260

          I have the same question/concern. I just finished reading Ashby’s 34 reports this past weekend, and this issue of STRUCTURAL ARROW INTEGRITY IS THE #1 PRIORITY according to Ashby: (Not FOC, not BH design, not arrow mass,…..).

          Studies Ashby posted showed failure to arrow shaft upon bone impact(especially shots at high angle to game)where entended inserts ended in shaft, regardless of insert/outsert length. If my memory is correct this was as far back of BH as 4″, indicating your serving could go on forever. Outside of shaft causes friction however. Aluminum in BH/inserts was definitely a point of fail more so than steel. Carbon was not stated as the best shaft material, and compressed wood performed very well, but studies appeared to end in 2008. Not certain what is best shaft material today in 2012?

          So, I have little to add with personal knowledge to your inquiry, but another voice in agreement to a need for a better knowledge base to draw from. To best improve shaft integrity with todays knowledge, make the decision to shoot as square on to quarry or with game slightly quartering, to best improve your odds of arrow integrity during penetration. Current testimony has complete passthrough even on Elephant!

          Clever idea with the serving. Similar to when BH were tied on. Recommend to attmept to make the epoxy discussed fill the serving ridges to minimize resistence.

          This said, I give a BIG THANK YOU to Mr. Ashby for all the time, effort, and personal money invested to improve the archery community. It is clear he contacted manufacturers repeatedly with requests to make products available to meet a specific need. Rather than “if we build it will they come?, perhaps the archery community needs to petition the Mfr as a united voice to how large a need exists for proven products.

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